660075222242 has 6 divisors (see below), whose sum is σ = 990114556833. Its totient is φ = 330037036632.

The previous prime is 660075222239. The next prime is 660075222253. The reversal of 660075222242 is 242222570066.

660075222242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 632866389841 + 27208832401 = 795529^2 + 164951^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=574489.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 660075222196 and 660075222205.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 861734 + ... + 1436222.

Almost surely, 2^660075222242 is an apocalyptic number.

660075222242 is a deficient number, since it is larger than the sum of its proper divisors (330039334591).

660075222242 is an frugal number, since it uses more digits than its factorization.

660075222242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148980 (or 574491 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 660075222242 in words is "six hundred sixty billion, seventy-five million, two hundred twenty-two thousand, two hundred forty-two".